Author Topic: Chandrayaan-2 GSLV-MkII mid-April 2018  (Read 125945 times)

Offline vineethgk

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Re: Chandrayaan-2 GSLV-MkII April 2018
« Reply #280 on: 02/05/2018 01:20 AM »
ISRO Chief hints that Chandrayaan-II could be delayed a bit, with GSLV MkIII D2 happening prior to that. The April launch quoted earlier may have been more of an optimistic target in any case..

http://www.thehindu.com/sci-tech/science/isro-needs-4-years-to-catch-up-with-satellite-demand-dr-sivan/article22651083.ece

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As a part of the three-year short-term action plan, immediate missions that we plan to do this year are the GSLV-F08 that will launch the GSAT-6A communication satellite [around February]. Then we will have a PSLV mission with navigation satellite IRNSS-1I. Then comes the second developmental flight D2 of GSLV-MkIII. It will launch the high throughput satellite GSAT-29. Later, GSAT-11, which will be our heaviest satellite as of now, will be launched from Kourou. The Chandrayaan-2 mission will be launched this year on another GSLV.

Offline worldtimedate

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Re: Chandrayaan-2 GSLV-MkII April 2018
« Reply #281 on: 02/08/2018 07:01 AM »
The following news report discusses many startling details of ISRO'S ambitious Chandrayaan II mission -  likely to be launched in April - carrying an orbiter, a lander and a rover. After being launched into an elliptical earth parking orbit by the GSLV II, it will be gradually sent to the Moon by the onboard thrusters of Chandrayaan II through the slingshot or the raising of the orbit of the spacecraft just the way Chadrayaan I was sent.

Chandrayaan-2 mission: Rover to spend 14 days on moon's surface, says Isro chief

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Unlike the first lunar mission when a PSLV rocket carried the spacecraft to the moon's orbit, this time heavy-payload lifter GSLV Mk II will launch the spacecraft weighing 3,290kg as the module will carry an orbiter, a rover and a lander to the moon.

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Dr Sivan said, "After reaching the moon's orbit, the lander will get detached from the orbiter and do a soft-landing near the south pole of the moon. The 6-wheeled rover fixed within the lander will get detached and move on the lunar surface. The rover has been designed in such a way that it will have power to spend a lunar day or 14 Earth days on the moon's surface and walk up to 150-200 metres. It will do several experiments and on-site chemical analysis of the surface."

The Isro chairman said, "The rover will then send data and images of the lunar surface back to the Earth through the orbiter within 15 minutes.

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After spending 14 earth days, the rover will go in a sleep mode. We are hoping the rover will again come alive whenever that part of the moon (where the rover will land) gets sunlight and recharges the rover's solar cells. Besides the rover, the orbiter will also capture images of the moon while orbiting it."

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On testing of lunar components, Dr Sivan said, "All three components of the lunar module are almost ready. Currently, their integration is going on. Once the module is ready, it will have to go through rigorous tests." On fixing launch date, he said, "The launch date will depend on various factors like the moon's relative position with respect to the Earth.

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Once the GSLV is launched, it will put the spacecraft in the 170 km x 20,000 km elliptical orbit. From the elliptical orbit, the craft will be manoeuvred towards the lunar orbit by firing thrusters. Therefore, we expect it to reach the lunar orbit in two months."

worldtimedate [ http://www.world-timedate.com/ ]

Offline vineethgk

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Re: Chandrayaan-2 GSLV-MkII mid-April 2018
« Reply #282 on: 02/18/2018 07:35 AM »
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In the run-up to the most challenging space exploration programme undertaken ever by India, ISRO chairman K Sivan told Express that integration of all the three components of the spacecraft is nearing completion at ISRO Satellite Centre in Bengaluru. “The next 45-60 days will be crucial as the composite pack, comprising Orbiter, Lander and Rover will go through a series of rigorous tests in disassembled and assembled mode. The outcome of these test results will determine the launch date. If we succeed to achieve the desired results in the first attempt, then the launch would take place in April, but in case any technical problems are encountered, there would be a delay. Since this is the first such attempt being made, there is always an uncertainty,” he said.

The chairman said the launch window is fixed between April and October, within which the space agency hopes to accomplish the mission. “The launch date depends on multiple factors like the moon’s relative position with respect to Earth. After the lift-off from Sriharikota, it would take approximately two months to reach the designated moon’s orbit. Another important factor is that when the Lander makes the touchdown on the pre-determined site near south pole of lunar surface,  there should be sunlight. In a month, moon sees sunlight for only 14 days,” Sivan said.
Source


Offline worldtimedate

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Re: Chandrayaan-2 GSLV-MkII mid-April 2018
« Reply #284 on: 02/20/2018 05:17 AM »
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With the much-awaited Chandrayaan-2 mission, India's second flight to the moon, Isro is attempting to pull off a daredevil manoeuvre. It will be the first-ever mission to soft land near the moon's south pole, which poses a number of challenges.

"We have identified two locations and will be choosing one. No other moon mission has landed in this area," said former Isro chief AS Kiran Kumar on Saturday, who retired as Isro chairman last month.

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In preparation for this touchdown, landing simulations are currently on at Isro's Liquid Propulsion System Centre at Mahendra Giri in Tamil Nadu. The exercise involves a prototype of the lander simulating a soft landing from a height of 70-80 metres.


Source : Isro plans landing near moon’s south pole with Chandrayaan-2

worldtimedate [ http://www.world-timedate.com/ ]

Offline K210

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Re: Chandrayaan-2 GSLV-MkII mid-April 2018
« Reply #285 on: 02/22/2018 02:06 PM »
Very likely this will be delayed to June-July time frame given the fact that second launch pad has a backlog to clear before this can launch. GSLV MK-2 F-08/GSAT-6A and GSLV MK-3 D2/GSAT-29 are both set for launch before GSLV MK-2 F-10/Chandraayan-2. 

Offline K210

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Re: Chandrayaan-2 GSLV-MkII mid-April 2018
« Reply #286 on: 02/23/2018 04:33 AM »
GSLV MK-2 F-08/GSAT-6A pushed to late march. Chandraayan-2 launch before may is impossible at this point.

Source: http://www.thehindu.com/todays-paper/tp-national/tp-tamilnadu/gsat-11-launch-in-april-or-may-isro/article22830646.ece